LHC as a photon-photon collider: bounds on ${\Gamma }_{X\to \gamma \gamma }$

S. I. Godunov, E. K. Karkaryan, V. A. Novikov +3

In the relatively recent CMS data, there is a hint on the existence of a resonance with the mass 28 GeV coupling to muons. Such a resonance should also couple to photons through th…